1、 Purpose:
XNR—400CThe melt flow rate meter meets the requirements《GB/T 3682The standard "Determination of Mass Flow Rate and Volume Flow Rate of Thermoplastic Melt" is used to determine the flowability of thermoplastic polymers at high temperatures, such as polyethylenePEPolypropylenePPResinABSPolycarbonatePCNylonPA6Measurement of the melt index of various plastic raw materials. the productWidely used in industries such as plastic raw material production plants, plastic product factories, petrochemical companies, as well as relevant colleges, research institutes, and quality inspection units.
2、 Characteristics:
1.This instrument adoptsPLCControl5Chinese character display and touch operation on inch touch screen.
2.Automatic temperature control: using DeltaPT1000VAutomatic control modulePIDControl, fast constant temperature, small temperature fluctuations.
3Automatic cutting: There are two cutting operation modes: "timed cutting method" and "positioning and moving cutting method".
3．1The "timed cutting method" starts the automatic cutting of the test system after inputting the cutting cycle. At the end of the test, it automatically switches to the result screen and displays the volume method result. Simply input the total weight of the effective section, and the system automatically calculates the quality method result and melt density.
3.2After entering the number of cutting ends, the "positioning and cutting method" starts the automatic cutting of the test system. At the end of the test, it automatically switches to the result screen and displays the volume method results. Enter the weight of each effective section, and the system automatically calculates the quality method results and melt density.
4.Automatic loop storage is the closest10Historical records available for inquiry.
5.This machine can display data through a computer, and the instrument can be connected to a computer for operation and data storage. After the experiment is completed, the computer automatically stores the test report in image format, which can be printed or sent to customers for original report preparation.
IIIworking principle
XNR—400CThe melt flow rate meter is a plastic extrusion instrument. It uses a high-temperature heating furnace to bring the measured substance to a molten state under specified temperature conditions. The test substance in this molten state is extruded through a small hole of a certain diameter under a specified load. In plastic production, the melt index is commonly used to represent the physical properties such as flowability and viscosity of polymer materials in a molten state. The so-called melt mass flow rate refers to the average weight of each section of the extruded sample converted into10Minute extrusion volume.
III Experimental parameters;
1. Temperature control range: room temperature -400℃
2. Temperature control accuracy:±O.5℃within
3. Temperature resolution:0.1℃
4. Measurement range:O.1～240g／10min(MFR)
O.1～260cm3／10min(MVR)
5. Timing accuracy:O.0lS
6. Damn it Code: Full load
7Cutting method: automatic, time controlled
8. Mouth Mold: Made of tungsten carbide materialΦ2.095mm
9．merit rate：450W
10Electricity Source:AC220V 、50Hz
4Instrument structure diagram:
(The picture showsXNR-400CType)
